Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 23
xception : the initialpressure in the pump remains constant throughout thestroke. Formula is the same as for a steam engine. Hump. This is an arch or bend which causes an airpocket in a water-pipe line. Hydrant. A valve and spout connecting with a street main. Hydraulic Belt. An endless woolen band… … HvDK.vuLic Jack. Hydraulic Jack. A lifting device inwhich a ram, a pump, and liquid isused instead of a screw. Hydraulic Pivot. A slippery liquidsupport for an upright shaft, afilm of water being introduced be-neath it by pressure to supportthe weight thereof and prevent theusual friction of the…
Hydraulic machinery · Pumping machinery
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